: Reduced compression artifacts, especially in high-motion scenes.
Format 616 is a high-bitrate video stream offered to subscribers. While it provides the same 1920x1080 resolution as standard 1080p (typically format 137), format 616 is part of YouTube's "Enhanced Bitrate" tier. g616.mp4
: It is an MP4 file, often associated with M3U8 playlists. : Reduced compression artifacts